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A. SfI-IENN.

(No Model.)

SNAP HOOK.

' Patented Dec.

N. PETiRi PhokvLhhngruphnr. Wunin um. 11c

' 5o pletes the body of the hook. It is of such UNITED STATES PATENT OFICE.

ALFRED s. HENN, or NEW HAVEN, CONNECTICUT, ASSIGNOR T SARGENT a 00., 0FSAME PLACE.

SNAP-HOOK.

SPECIFICATION forming part of Letters Patent No. 250,533, dated Depember6, 1881.

To all whom it may concern:

Be it known that I, ALFRED S. HENN, of New Haven, in the-county of NewHaven and State of Connecticut, have invented a new Improvement inSnap-Hooks; and I do hereby declare the following, when taken inconnection with the accompanying drawings and the letters of referencemarked thereon, to be a full, clear, and exact description of the same,and which said drawings constitute part of this specification, andrepresent, in Figure 1, a side View; Fig. 2, top view; Fig. 3,longitudinal section; Fig. 4, transverse section of the hook complete;Figs. and 6, the two parts detached; Fig. 7, transverse section of thebody on line a: 00, looking toward the loop.

This invention relates to an improvement in that class of snap-hooks inwhich a bolt is arranged longitudinally in the body to slide back andforth from the point of the hook to open and close the mouth, and thesaid bolt provided with a spring, the tendency of which is to force andhold it forward against the end of the hook to close the mouth, yieldingfor the opening of the hook.

The object of the invention is to avoid the mechanical labor necessaryin the manufacture of this class of hooks as usually constructed, andalso to cast the parts without a core; and the invention consists in theconstruction of c the hook, as hereinatter described, and particularlyrecited in the claim.

As seen in Fig. 5, the body Ais constructed with the loop B atone endand the hook C at the other end, in the usual relation to each other,the hook 0 being turned to one side out of its natural plane, so that itmay be readily molded, also in the usual manner. The body A has alongitudinal opening, D, in the vertical plane of the hook-that is,downward through the body-and on each side of this opening is an inward]y-proj ectin g rib, a, which forms the longitudinal guide for the bolt.Across the opening, or in rear of it, is a bridge, I), as a seat for thespring.

Fig. 7 shows a section of the body of the hook on line w 00 of Fig. 5,in which the ribs a and the bridge-b are clearly seen. This com- (Nomodel.)

shape that it may be readily molded and cast complete, so that thesubsequent tumbling operation finishes that part except the bending ofthe hook up into its natural plane.

The bolt, as seen in Fig. 6, has its body E of tubular shape, with alongitudinal transverse slot, 6, through it, the diameter of this tubecorresponding to the width of the opening D in the body of the bolt, andthe slots in the opposite sides correspond to the ribs a a, so that theplate may be passed longitudinally into the opening D onto the guides ora and be freely moved longitudinally ou'said guides. The forward end ofthe tube terminates in a nose, F, to bear against the end of point ofthe hook (l, and on the upper side of the tube a lug, f, is preferablymade as a convenient means for sliding the bolt. This bolt may bereadily molded and cast without core, it being drawn longitudinally fromthe mold. The interior of the bolt corresponds to the diameter of thespring to be used.

The bridge bis ofshape to pass into the bolt through the slots at thesides, so that the spring H introduced into the bolt and seated 7against the bridge I) will tend to force the bolt forward to the pointof the hook, as seen in Fig. 3, but yet yield for the withdrawal of thebolt to open the mouth of the hook.

The parts are put together, and then the hook is bent up into itsnatural plane and forward of the bolt, as seen in Figs. 1, 2, and 3,which retains the bolt in its position and completes the hook.

By this improvement the construction of this class of hooks is very muchsimplified, as the parts may be taken as they come from thetumbling-barrel and placed together without any'of the usual mechanicaloperations; hence the cost of the hook is very much reduced, and itpossesses all the advantages of the best of this class of hooks-that is,the long barrel which is usually employed, and which is liable to fillwith dirt, and thus clog the spring of the hook, which cannot occur inthis book, 5 because the barrel is so open that dirt or foreignsubstances cannot enter and remain therein to clog its working.

I claim The herein-described snap-hook, consisting of the body A,terminating at one end in the guides to a, and the spring arrangedwithin loop B and at the other in the hook O, the the tubular part ofthe bolt and seated against body constructed with a longitudinalopening, said bridge, substantially as described.

D, provided with guides a 60 upon its sides, ALFRED S. HENN. 5 and withthe bridge or seat I) at the rear, com- Witnesses:

bined with a bolt constructed with a tubular JOHN E. EARLE,

body longitudinally slotted to ride upon said I. B. SARGENT.

